However, the Allies were able to capture an example of the Breen weapon, allowing them to develop countermeasures. The Breen continued to fight on the side of the Dominion until the end of the war, demonstrating a willingness to die for the cause comparable to that of the Jem'Hadar. In some respects this dedication actually worked to the benefit of the Allies – the Dominion's increasing reliance on the Breen forces made the Cardassians feel increasingly isolated and abandoned, and was a contributory factor in the Cardassians' eventual split from the Dominion. Ultimately, the Dominion was defeated at the Battle of Cardassia. (DS9: "Tacking Into the Wind", "What You Leave Behind")